Haven't seen this forum so congested with misguided, useless and wrong information.  
Acb is not valuing their shares for less.  They want to aquire a company whose current sp is $15+ and are offering % premium to max 24$ sp.  
If I owned cannimed shares at 24$ and wanted to purchase Aurora I could get 4x the number of shares. That's all, not rocket science but people here are twisting and distorting the facts.
Said it before, anyone can pm me with any questions or comments.  Anyone new here please do your own dd as following this forum will confuse you more.  Bashers are out in full force.